Shares of Tata Motors’ Passenger Vehicles (PV) business are down nearly 10%, according to NDTV. The outlet links the move to the broader relative underperformance of the stock over a longer period. NDTV reports that Tata Motors PV shares have fallen about 12.5% over the past year, while the Nifty 50 index declines about 3.3% in the same timeframe. The coverage focuses on the gap between the stock’s performance and the market benchmark, indicating that investors are weighing the PV business differently from the broader equity market. The articles provided do not specify the immediate trigger for the near-term drop or cite particular company announcements, sector developments, or analyst explanations. Based on the information available, the main reported context is the extent of the stock’s decline and its weaker performance relative to the Nifty 50 over the year.